Abstract: Methods of manufacturing a biocompatible, hermetic feedthrough monolithically integrated with a biocompatible ribbon cable are described, as well as the resulting devices themselves. The hermetic feedthrough is created by placing glass over a mold of doped silicon or other material with a higher melting temperature than the glass and heating it to reflow the glass into the mold. The glass is then ground or otherwise removed to reveal a flat surface, and tiny pillars that were in the mold are isolated in the glass to form electrically conductive vias. The flat surface is used to cast a polymer and build up a ribbon cable, photolithographically or otherwise, that is monolithically attached to the vias.
Type:
Grant
Filed:
July 9, 2020
Date of Patent:
August 31, 2021
Assignee:
Neuralink Corp.
Inventors:
Vanessa M. Tolosa, Camilo A. Diaz-Botia, Supin Chen, Felix Deku, Yu Niu Huang, Mark J. Hettick, Zachary M. Tedoff